Domain Extensions / .app

.app domains

The .app domain is a generic extension from Google Registry aimed at applications, their makers, and the pages that promote them. Like .dev, the whole .app namespace is on the HSTS preload list, so browsers connect only over HTTPS and a valid TLS certificate is mandatory for the site to load. That makes .app a secure-by-default home for a mobile or web app's landing page, download links, and support pages, giving users a built-in assurance that the connection is encrypted. Registration is open to everyone. For a product team that wants a short, purpose-built address that says "this is an app" and enforces modern security automatically, .app is a strong, self-explanatory choice.

.app domain details

Register .app domains with an AI agent

OSIR is an AI-native registrar. Every .app domain can be registered, renewed, and managed through natural language using Claude, ChatGPT, or any agent that supports the Model Context Protocol (MCP).

Frequently asked questions

How do I register a .app domain?

Search for the .app name you want, confirm it is available, and complete checkout - or ask an MCP-compatible AI assistant to do it for you. Registration through OSIR starts at $14.00/yr and includes free WHOIS privacy, DNSSEC, and anycast DNS.

Can I register a .app domain with Claude or ChatGPT?

Yes. OSIR supports the Model Context Protocol (MCP) with 82 tools, so any MCP-compatible AI assistant - including Claude Desktop, Cursor, and Copilot - can search, register, and manage .app domains on your behalf.

What is included with a .app domain registration?

Every .app domain registered through OSIR includes anycast DNS, DNSSEC support, free WHOIS privacy protection, registrar lock, and full API and MCP access. Registration starts at $14.00/yr.

How much does it cost to renew a .app domain?

.app renewal is $14.00/yr through OSIR. Prices include ICANN fees and a 3% or $0.30 processing fee (whichever is greater). There are no hidden fees.